MD80 crew had altitude overshoot in ZJX class east.

Attributes
ACN	475200
Time
Date	200006
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : omn.vortac
State Reference	FL
Altitude	msl bound lower : 11500 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 4000
ASRS Report	475200
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : returned to assigned altitude none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Descending to cross lamma at 12000 ft. I looked away from altimeter to adjust heading. I had called 'out of 13000 ft for 12000 ft, a thousand to go.' when I looked back the altimeter was at 11800 ft and descending. The autoplt had not stopped at 12000 ft. I hit 'altitude hold' twice -- it didn't stop. I switched off the autoplt and stopped the descent at approximately 11500 ft. On the next leg the autoplt continued through 11000 ft on a descent and caught immediately. We wrote it up at the end of that leg. Looking away from the instruments by having to look at the glareshield area is bad. Too much automation.

Original NASA ASRS Text

Title: MD80 CREW HAD ALT OVERSHOOT IN ZJX CLASS E.

Narrative: DSNDING TO CROSS LAMMA AT 12000 FT. I LOOKED AWAY FROM ALTIMETER TO ADJUST HEADING. I HAD CALLED 'OUT OF 13000 FT FOR 12000 FT, A THOUSAND TO GO.' WHEN I LOOKED BACK THE ALTIMETER WAS AT 11800 FT AND DSNDING. THE AUTOPLT HAD NOT STOPPED AT 12000 FT. I HIT 'ALT HOLD' TWICE -- IT DIDN'T STOP. I SWITCHED OFF THE AUTOPLT AND STOPPED THE DSCNT AT APPROX 11500 FT. ON THE NEXT LEG THE AUTOPLT CONTINUED THROUGH 11000 FT ON A DSCNT AND CAUGHT IMMEDIATELY. WE WROTE IT UP AT THE END OF THAT LEG. LOOKING AWAY FROM THE INSTS BY HAVING TO LOOK AT THE GLARESHIELD AREA IS BAD. TOO MUCH AUTOMATION.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.